Air-brush.



A. KOPINSKI.

AIR BRUSH.

APPLICATION man MAY 29. 1915.

Patented Mar. 6, 1917.

W WU W 'A omumo.. wAsmm:

AUG-UST KOPINSKI, F CHICAGO, ILLINOIS.

.AIR-BRUSH. v

Specification of Letters Patent.

. Patented Malte, 1917.

application filed May 2a, 1915. seralno'. 31,285.

. To all whom t may concern.'

Be it known that I, AUGUST KOPINsKI, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Air-Brushes, of which the following is a specication.

My invention relates to improvements in air brushes and'has for its object the production of a device of this character which will be of improved construction and etlicient in operation.

Other objects will appear hereinafter.

The invention consists inthe combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawing, iiorming a part of this specification, and in which- Figure 1 is a vertical section of an air brush embodying the invention,

Figs. 2 and 3 are enlarged sections taken on lines -m and y-fz/ respectively of Fig.v 1, and

Fig. 4 is a section taken Von line a-a of Fig. 1.

The preferred form of construction as illustrated in the drawing comprises an elongated cylindrical member 1 through which is formed an axial air passage 2. Rigidly secured to one end of the member 1 is a tubular member 3. Also mounted upon the member 1 is a connecting member 4 which is clamped in position between the member 3 and a lock nut 5 threaded upon the member 1.

Threaded in the lower end of member 4 is the upper end of a downwardly extending pipe 6, the upper end of the passage through said pipe communicating with a transversely extending passage 7 formed in the member lvwhich is in open communication with the passage 2. The lower end of pipe 6 is inclosed in an ink, paint or pigment supply reservoir 8 having a screw cap 9which is securely held in position against the lower end of member 4 by means of a. collar 10p formed upon the pipe 6.

The jiorward end of passage 2 communicates withv apigment nozzleV 11 which is threaded in the front end of member* 1. Surrounding thenozzle 11 is an air nozzle 12 which is threadednpon the front end of member 1 as shown." The discharge through nozzles 11 and l2 lis controlled by a needle j valve 13 secured at its'rearward end in a member 14 which is threaded in the rearward end 'of memberl. The member 14 is provided with an exteriorlv positioned knurled -head 15, whereby the same may be rotated in order to adjust the position of valve 13. Theupper side of the member 1 is flattenedA or vcut away in order to form a longitudinally extending air passage 16 4which communicates at its front end with the nozzle l2. The'rearward end of passage 16 is connected by means'oi' a circumferential nassage or groove 17 formed in the rearward end of `member 1, with a vertically extending passage 18 formed in a member 19 secured rigidlv at its upper end to the rearward end of member 3. The lower end of 'passage 18 is connected with a compressed air supply tube 20 by means of a coupling member 21 threaded in the lower endof member 19.

YSecured to and projecting outwardly from the member 19 at right angles thereto is a handle piece 22 providedv at its outer end with a grip 28 adapted to be engaged by the hand when the device is in use.

The front of the handlepiece 22 traverses the passage 18 and in order'to preserve the continnitv of saidpassage, is formed with a registering` passage 24. The air passage `thus formed establishing communication between compressed air supply pipe 20 and the air nozzle 12 is controlled bv an elongated valve member .25 which is mounted for longitudinal sliding in the handle piece 22, the front end of said member 25 being adapted to traverse said passage as shown.

The opposite end of the member 25 projects downwardly into engagement with` a sleeve or collar 26 which is slidably mounted upon handle piece 22so that, upon shifting of said sleeve, said valve member will be moved. The under side of handle piece 22y is longitudinally slotted as at 27 to afford clearance for the downwardly projecting portion of said valve member. A helical compression spring 28 engaging against the outer end of member 26 serves to normally hold the valve 25 in closed position.

1n using the device, the reservoir S having been suppliedwvith the ink, paint or other liquid pigment desired and the tube 20 having been connected with a. source of compressed air sup-ply, to effect discharge from the device it is only necessary to rotatably adjust the valve l5 and to retract the sleeve 26. When-this is done it will be seen that compressed air will be admitted to and discharged from the nozzle 12 which Will result in the creation of a suction in the passage 2, the suction thus created causing liquid pigment to be automatically drawn up through the pipe 6 into the passage 2 and discharged With the compressed air through the nozzle 12. The formation of the air passage 16 is such as to be readily accessible for cleaning upon removal of nozzle 12 and the construction is such ,as to permit of economical manufacture. rlhe arrangement of the air controlled valve 25 permits of ready and easy movement'therecf, the sleeve 26 being located in close proximity with the grip 23.

. W'hile have illustrated and described the preferred form of construction for carrying inv invention-,into effect, this is capable of variation and modification Without departing from the spirit of the invention. l, therefore, do not Wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come Within the scope of the appended claims. A

Having described my invention What I claim as neW and desire to secure by Letters Patent is:

l. 1n an air brush, the combination of a pigment and an air nozzle; a pigment supply reservoir in communication with said pigment nozzle; a valve for controlling communication between said pigment reservoir and said pigment nozzle; an exteriorly positioned handle on said valve; a passage communicating With said air nozzle and disposed at right angles thereto for the supply of compressed air thereto; a handle piece projecting from said air passage at substantially right angles thereto and substantially parallel With the axes of said nozzles; means for controlling said air passage, said means comprising an elongated longitudinally slidable valve member mounted in saidY handle piece and having one end adapted totraverse said passage; a sleeve slidably mounted on said handle piece in close proximityrwith said before mentioned valve handle, said sleeve engaging With the opposite end of said valve member for manually retractmg said valve member; and a spring engaging with said sleeve for norangles 'thereto and substantially parallel With the aXes of said nozzles; a grip provided on the outer end of said handle piece;

means for controlling said air passage, said means comprising an elongated longitudinally slidable valve member mounted in said handle piece and having one end adapted to traverse said passage; a sleeve shiftably mounted on said handle piece in close proximity with the inner end of said grip and said before mentioned valve actuating head for re'tracting said valve member; and a spring engaging against said sleeve for normally holding said valve member in closing position, substantially' as described.

3. In an air brush, the combination of a pigment and an air nozzle; a pigment supply reservoir in communication With'said pigment nozzle; means for supplying compressed air to said air nozzle; means for controlling the flow of the liquid from said pigment nozzle; a handle piece; a valve for controlling the flovv of compressed air to said air nozzle; and a conical sleeve on said handle for actuating said valve, substantially as described.

4. In an air-brush, the combination of a pigment nozzle and an air nozzle, a source of pigment supply and a source of air supply communicating with said nozzles respectively, a handle, reciprocating means adjacent said handle for controlling the air supply, and rotary means adjacent said handle for controlling the pigment supply, said reciprocating means and said rotary means being operable independently by different fingers of the hand grasping said handle, and the aXis of rotation of said rotary means being substantially parallel to the path of reciprocation of said reciprocating means, substantially as described.

5. ln an air-brush, the combination of ply communicating ivith said nozzles respectively, a handle substantially parallel with the aXis of said nozzles and in a plane independently by fingers of the hand grasp- 10 below the same, rotary means for controling said handle, substantially as described. ling the pigment supply and including a In testimony whereof I have signed my knurled member adjacent the forward end name to this specification in the presence of of said handle :1nd slightly above the same, two subscribing' witnesses.

and reciprocating means on the said handle AUGUST KOPINSKI. adjacent said knurled member, for control- Witnesses: ling` the air supply, whereby the pigment ARTHUR A. OLSON,

supply and the air supply may be controlled HELEN F. LILLIS.

Copies of this patent may be obtained for` ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

